Variation in population parameters: Adaptation to toxic environmental factors

被引：13

作者：

Bezel', VS ^{[1
]}

Pozolotina, VN ^{[1
]}

Bel'skii, EA ^{[1
]}

Zhuikova, TV ^{[1
]}

机构：

[1] Russian Acad Sci, Ural Div, Inst Plant & Anim Ecol, Ekaterinburg 620144, Russia

来源：

RUSSIAN JOURNAL OF ECOLOGY | 2001年 / 32卷 / 06期

基金：

俄罗斯基础研究基金会;

关键词：

ecotoxicology; adaptation; heavy metals; animal and plant populations; variability; reproduction;

D O I：

10.1023/A:1012534201258

中图分类号：

Q14 [生态学（生物生态学）];

学科分类号：

071012 ; 0713 ;

摘要：

Some mechanisms of adaptation of natural populations to toxic environmental factors are discussed. The dandelion and hole-nesting birds are used as examples for demonstrating that an increase in the variation of reproductive parameters upon chemical environmental pollution favors the survival of those individuals in the populations that are better adapted to changes in the climate and other environmental conditions. The increased variation in reproductive parameters may promote the elimination of less fit individuals from populations. The ensuing energy loss is the cost of maintaining the population size in the chemically degraded environment.

引用

页码：413 / 419

页数：7

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